Champions League: What is at stake for Arsenal, Man City, Man United on matchday two?

Matchday two of this season's Champions League league phase gets underway on Tuesday, October 13, with the teams that won their opening fixtures looking to build on their positive starts to the competition. All five Premier League clubs enjoyed a successful opening gameweek, as Arsenal , Manchester City , Liverpool , Aston Villa and Manchester United each picked up three points to get their European campaigns off to a winning start.